98 AXTHOMYZA TIRESIA. 
conidse. They certainly bear a very striking genera! 
resemblance to the Heleconian butterflies, and the 
analogy must be admitted to be close. 
A. Tiresia measures three inches and three-quar- 
ters between the extremities of the wings : the upper 
pair are deep black with two broad, opaque, deep 
yellow bands lying obliquely across the surface, 
one near the middle, the other, somewhat abbrevi- 
ated, towards the apex, and a patch of the same 
colour on the hinder border before the middle ; the 
base with a few small white spots, and a remote 
series of the same .near the exterior margin and 
parallel with it. The hinder wings are yellow, with 
a broad black border bearing a marginal row of 
white spots : anterior part of the thorax spotted 
with white ; abdomen brown. 
A. heleconides. Colours and the mode of their 
distribution precisely as in the preceding species, but 
the yellow paler,, approaching to yellowish-white, 
and the bars and spots transparent. Expansion of 
the wrings three inches. Sicainson's Zool. Illia., 
pi. 124, fig. 2. 
